CN206128137U - Well lid that structural strength is high - Google Patents
Well lid that structural strength is high Download PDFInfo
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- CN206128137U CN206128137U CN201621183440.6U CN201621183440U CN206128137U CN 206128137 U CN206128137 U CN 206128137U CN 201621183440 U CN201621183440 U CN 201621183440U CN 206128137 U CN206128137 U CN 206128137U
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- well lid
- fin
- manhole
- square
- hole section
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Abstract
The utility model discloses a well lid that structural strength is high, it is including well lid, well lid seat, the well lid outer fringe is protruding to be equipped with two at least auricle portions, the shaping has the card to establish the heavy groove of auricle portion on the well lid seat, be provided with the connection structure of movable fixed connection well lid and well lid seat between auricle portion and the heavy groove, the well lid seat in sink the groove below have with well head complex supporting seat, the supporting seat has first support ring, second support ring, first support ring embolias the interior and wall of a well tight fit of well, pull in the well on the wall in second support ring top, with the help of above -mentioned structure, the utility model discloses the well lid has structural strength height, higher load -carrying members, security advantage such as better.
Description
Technical field
This utility model is related to a kind of well lid, refers in particular to a kind of high well lid of structural strength.
Background technology
Well lid, for covering road or family's middle-deep well, prevents people or object from falling.Include well lid and close cover seat of manhole, lid
Well seat is fixed on well head by cement mortar, and well lid is fixed on cover seat of manhole by lock solid structure, and well lid is by cover seat of manhole
Interior flanging is supported, and impulsive force when vehicle is crossed all is acted directly on interior flanging, and the interior flanging of cover seat of manhole is a monolayer
Gripper shoe, structural strength is weaker, in the case of well lid stress sharp pounding, easily loosen it is even overall sink, produce peace
Full hidden danger.
In view of this, the design people for above-mentioned manhole cover structure design on do not attain improve institute caused by it is many disappearance and not
Just, and deeply conceive, and actively research improvement has a fling at and develops and design this case.
Utility model content
The purpose of this utility model is to provide a kind of structural strength high well lid, can improve the load-carrying members of cover seat of manhole,
The pressure of dispersion well lid, improves the well lid life-span and safety is more preferable.
In order to reach above-mentioned purpose, solution of the present utility model is：
A kind of high well lid of structural strength, it includes well lid, cover seat of manhole；The well lid outer rim is convexly equipped with least two ears
Piece portion, forms the deep gouge that card sets auricle portion on the cover seat of manhole, the fixed company of activity is provided between the auricle portion and deep gouge
Connect the attachment structure of well lid and cover seat of manhole；The cover seat of manhole is located at deep gouge lower section and has the support base coordinated with well head, institute
Support base is stated with the first support ring, the second support ring, first support ring is inserted in well and borehole wall tight fit, described second
Pull on Jing Qiang on support ring top.
The sealing space that can fill reinforcement structure material is formed between first support ring and the second support ring.
The well lid is circle, and the auricle portion is the circular arc of three well lid outer rim trisection posistions for being molded over circle
The first auricle portion, the cover seat of manhole is circle, and the deep gouge is three be molded over cover seat of manhole and correspondence circular arc respectively the
The first auricle groove in one auricle portion.
For square, the auricle portion is the of two circular arc for being molded over well lid outer rim opposite end respectively to the well lid
Two auricle portions, the cover seat of manhole is square, and the deep gouge is molded over respectively cover seat of manhole opposite end and correspondence circular arc for two
The second auricle portion the second auricle groove.
The attachment structure includes the first square through-hole section taken shape on well lid, the second party taken shape on cover seat of manhole
The drum connector of shape through-hole section and activity locking first party shape through-hole section and the second square through-hole section；First square through hole
The first fin with spacing is formed respectively on relative two inwalls in portion, and at least one end of the first fin described in two is first
The first groove is formed in square through hole portion, the spacing described in two between first fin forms first connected with the first groove and leads to
Road；First fin described in the second square through-hole section correspondence two forms two second fins, and the second fin described in two is at least
One end forms the second groove in the second square through-hole section, and the spacing described in two between second fin is formed and the second groove
The second channel of connection；The drum connector has the first transverse part being snapped in above the first fin, is snapped in second wing
The second transverse part below piece and the first transverse part of connection and the second transverse part and be placed in first passage, second channel the
One vertical connecting portion.
The first square through-hole section has the extension that protrude from well lid bottom surface and can be inserted in the second square through-hole section
Portion, first fin takes shape in the bottom of extension described in two.
Block rubber is plugged with first groove, the second groove, the block rubber has to stretch puts the first groove, the second groove
Vertical portion, stretch the transverse part put above the first fin and the wide diameter portion being snapped in above the first square through-hole section.
The internal ring of the cover seat of manhole is provided with anti-fall impingement baffle, is provided between the anti-fall impingement baffle and cover seat of manhole multiple
Lock solid structure, the lock solid structure include take shape on anti-fall impingement baffle third party's shape through-hole section, take shape in cover seat of manhole
The through hole of wall, the connector being inserted in through hole, square through-hole section and the activity locking third party taken shape on connector
The I shape part of shape through-hole section and square through-hole section；Form respectively on relative two inwalls of third party's shape through-hole section
The 3rd fin with spacing, at least one end of the 3rd fin described in two forms the 3rd groove in third party's shape through-hole section,
Spacing described in two between the 3rd fin forms the third channel connected with the 3rd groove；The square through-hole section it is relative
Form the 4th fin with spacing on two inwalls respectively, at least one end of the 4th fin is in square through hole described in two
The 4th groove is formed in portion, the spacing described in two between the 4th fin forms the fourth lane connected with the 4th groove；The work
Font part has the 3rd transverse part being snapped in above the 3rd fin, the 4th transverse part being snapped in below the 4th fin and connection
3rd transverse part and the 4th transverse part and the second vertical connecting portion being placed in third channel, fourth lane.
The through hole of multiple connectors of planting is provided with the cover seat of manhole inwall vertical direction.
The outer peripheral edge parcel one of the well lid encloses rubber washer.
After said structure, this utility model is convexly equipped with auricle portion in well lid outer rim, and molding card sets on cover seat of manhole
The deep gouge in auricle portion, can increase the Area of bearing between well lid and cover seat of manhole, and then can strengthen propping up between well lid and cover seat of manhole
Support effect；And cover seat of manhole arranges double-deck support base below deep gouge, wherein the first support ring and the borehole wall are combined, second
Support ring is combined with Jing Qiang so that support base is connected as a single entity with the borehole wall, Jing Qiang, and then is connected as a single entity with road surface, can improve well lid
The load-carrying members of seat, structural strength is high；When well lid is under pressure, can be pressure is applied on deep gouge by auricle portion, then be divided
It is scattered on support base, and then is distributed on road surface, it is to avoid well lid pressure is concentrated on cover seat of manhole and causes well lid and well lid
Seat is damaged, and safety is more preferable.
Description of the drawings
Fig. 1 is the decomposing schematic representation of this utility model well lid and cover seat of manhole；
Fig. 2 is the schematic top plan view of this utility model well lid；
Fig. 3 is the schematic top plan view of this utility model cover seat of manhole；
Fig. 4 is the partial schematic sectional view of this utility model cover seat of manhole；
Fig. 5 is the structural representation of this utility model drum connector or I shape part；
Fig. 6 is the schematic diagram of the attachment structure of this utility model well lid and cover seat of manhole；
Fig. 7 is the structural representation of this utility model block rubber；
Fig. 8 is the decomposing schematic representation of this utility model cover seat of manhole and anti-fall impingement baffle；
Fig. 9 is the structural representation of this utility model connector；
Figure 10 is the decomposing schematic representation of the square well lid of this utility model and cover seat of manhole.
Symbol description
The cover seat of manhole 2 of well lid 1
The deep gouge 21 of auricle portion 11
The support ring 221 of support base 22 first
The well wall 20 of second support ring, 222 borehole wall 10
The auricle portion 111 of sealing space 223 first
The auricle portion 112 of first auricle groove 211 second
The square through-hole section 31 of second auricle groove 212 first
The drum connector 33 of second square through-hole section 32
The groove 312 of first fin 311 first
The fin 321 of first passage 313 second
The second channel 323 of second groove 322
The transverse part 332 of first transverse part 331 second
The extension 314 of first vertical connecting portion 333
The vertical portion 341 of block rubber 34
The wide diameter portion 343 of transverse part 342
The third party's shape through-hole section 51 of anti-fall impingement baffle 4
The connector 53 of through hole 52
The I shape part 55 of square through-hole section 54
The groove 512 of 3rd fin 511 the 3rd
The fin 541 of third channel 513 the 4th
The fourth lane 543 of 4th groove 542
The transverse part 552 of 3rd transverse part 551 the 4th
The rubber washer 15 of second vertical connecting portion 553.
Specific embodiment
In order to the technical solution of the utility model is explained further, this utility model is entered below by specific embodiment
Row is elaborated.
Fig. 1 to Figure 10 is referred to, this utility model discloses a kind of high well lid of structural strength, and it includes well lid 1, well
Cage 2；The outer rim of the well lid 1 is convexly equipped with least two auricle portions 11, card is formed on the cover seat of manhole 2 and sets the heavy of auricle portion 11
Groove 21, the activity of being provided between the auricle portion 11 and deep gouge 21 is fixedly connected the attachment structure of well lid 1 and cover seat of manhole 2；It is described
Cover seat of manhole 2 is located at the lower section of the deep gouge 21 and has the support base 22 coordinated with well head, and the support base 22 has the first support ring
221st, the second support ring 222, first support ring 221 is inserted in well and the tight fit of the borehole wall 10, and second support ring 222 is pushed up
Pull on well wall 20.
This utility model is convexly equipped with auricle portion 11 in the outer rim of well lid 1, and molding card sets the heavy of auricle portion 11 on cover seat of manhole 2
Groove 21, can increase the Area of bearing between well lid 1 and cover seat of manhole 2, and then can strengthen the effect of the support between well lid 1 and cover seat of manhole 2
Really；And cover seat of manhole 2 arranges double-deck support base 22 below deep gouge 21, wherein the first support ring 221 and the borehole wall 10 are tied
Close, the second support ring 222 is combined with well wall 20 so that support base 22 is connected as a single entity with the borehole wall 10, well wall 20, and then connect with road surface
It is integrated, the load-carrying members of cover seat of manhole 2 can be improved, structural strength is high；When well lid 1 is under pressure, can be incited somebody to action by auricle portion 11
Pressure is applied on deep gouge 21, on redispersion to support base 22, and then is distributed on road surface, it is to avoid the pressure of well lid 1 is concentrated
Well lid 1 and cover seat of manhole 2 is caused to damage on cover seat of manhole 2, safety is more preferable.
Being formed between the support ring 222 of first support ring of the present utility model 221 and second can fill reinforcement structure material
Sealing space 223, the sealing space 223 can fill recruit's high-strength material, can improve the structural strength of support base 22；Or
The material (cast iron, cement etc.) of person's other raising support base intensity of filling in sealing space 223.
The well lid 1 of the present utility model is circle, and the auricle portion 11 is three outer rims three of well lid 1 for being molded over circle
First auricle portion 111 of the circular arc of position of halving, the cover seat of manhole 2 is circle, and the deep gouge 21 is molded over respectively for three
The first auricle groove 211 in the first auricle portion 111 of cover seat of manhole 21 and correspondence circular arc；The pressure that well lid 1 is subject to can uniformly be divided
It is dissipated on cover seat of manhole 2, improves the overall load bearing effect of well lid, and the trisection posistion in circular well lid 1 arranges attachment structure,
So that the attachment structure between well lid 1 and cover seat of manhole 2 is more firm.
The well lid 1 of the present utility model is square, and it is relative that the auricle portion 11 is molded over respectively the outer rim of well lid 1 for two
Second auricle portion 112 of the circular arc at two ends, the cover seat of manhole 2 is square, and the deep gouge 21 is molded over respectively well lid for two
The second auricle groove 212 in the second auricle portion 112 of 2 opposite ends of seat and correspondence circular arc；The pressure that can be subject to well lid 1 is uniform
It is dispersed on cover seat of manhole 2, improves the overall load bearing effect of well lid.
The attachment structure of the present utility model include take shape on well lid 1 the first square through-hole section 31, take shape in
The drum of the second square through-hole section 32 and activity locking first party shape through-hole section 31 and the second square through-hole section 32 on cover seat of manhole 2
Connector 33；Form the first fin 311 with spacing on relative two inwalls of the first square through-hole section 31 respectively, two
At least one end of first fin 311 forms the first groove 312, the first fin described in two in the first square through-hole section 31
Spacing between 311 forms the first passage 313 connected with the first groove 312；Two institutes of the correspondence of second square through-hole section 32
State the first fin 311 and form two second fins 321, at least one end of the second fin 321 is in the second square through hole described in two
Form the second groove 322 in portion 32, and the spacing described in two between second fin 321 forms the connected with the second groove 322
Two passages 323；The drum connector 33 has the first transverse part 331 being snapped in above the first fin 311, is snapped in second
Second transverse part 332 and the first transverse part 331 of connection of the lower section of fin 321 and the second transverse part 332 and it is placed in first passage
313rd, the first vertical connecting portion 333 in second channel 323；In assembling, the well lid 1 is covered on cover seat of manhole 2, and described the
One square through hole portion 31 and the second square through-hole section 32 are correspondingly arranged, the drum connector 33 vertically through the first groove 312,
Second groove 322, when first transverse part 331 is located at the top of the first fin 311, the second transverse part 332 perpendicular on vertical
The lower section of the second fin 321 is located at upwards, drum connector 33 is laterally urged, and the first vertical connecting portion 333 is placed in first
Passage 313, second channel 323, first transverse part 331 is snapped in the top of the first fin 311, the buckle of the second transverse part 332
In the lower section of the second fin 321；The drum connector 33 is capable of achieving to be fixedly connected well lid 1 with cover seat of manhole 2；In dismounting, can
Drum connector 33 is elapsed to the first transverse part 331 and is not snapped in the top of the first fin 311, the second transverse part 332 not buckle
In the lower section of the second fin 321, and the first vertical connecting portion 333 abjection first passage 313, second channel 323, then from first
Square through hole portion 31 is taken out by drum connector 33, you can realize that well lid 1 and cover seat of manhole 2 are disassembled；This attachment structure is more firm
Gu, it is simpler, and ease of assembly dismounts.
The first square through-hole section 31 of the present utility model has and protrudes from the bottom surface of well lid 1 and can be inserted in second square
Extension 314 in through-hole section 32, first fin 311 takes shape in the bottom of extension 314 described in two, and extension 314 is inserted in
Well lid 1 can be limited in second square through-hole section 32 to rotate, it is to avoid made by other active forces after well lid 1 and cover seat of manhole 2 are fixed
Obtain both to relatively rotate, affect both structures that is connected.
Block rubber 34 is plugged with first groove 312 of the present utility model, the second groove 322, the block rubber 34 has
Have to stretch and put the first groove 312, the vertical portion 341 of the second groove 322, stretch the transverse part 342 and buckle for putting the top of the first fin 311
In the wide diameter portion 343 of the top of the first square through-hole section 31；When drum connector 33 is locked on the first square through-hole section 31 and second
After in square through hole portion 32, block rubber 34 is filled in the first groove 312, the second groove 322, drum connector 33 can be avoided to take off
Go out the position that should lock, the attachment structure between well lid 1 and cover seat of manhole 2 is more firm.
The internal ring of the cover seat of manhole 2 of the present utility model is provided with anti-fall impingement baffle 4, the anti-fall impingement baffle 4 and well lid
Multiple lock solid structures are provided between seat 2, the lock solid structure includes the third party's shape through hole taken shape on anti-fall impingement baffle 4
Portion 51, the through hole 52 for taking shape in the inwall of cover seat of manhole 2, the connector 53 being inserted in through hole 52, take shape on connector 53
The I shape part 55 of square through-hole section 54 and activity locking third party's shape through-hole section 51 and square through-hole section 54；Described
The 3rd fin 511 with spacing, the 3rd fin 511 described in two are formed respectively on relative two inwalls of three square through-hole sections 51
At least one end the 3rd groove 512, the spacing shape described in two between the 3rd fin 511 are formed in third party's shape through-hole section 51
The third channel 513 of the connection of tri- grooves of Cheng Yu 512；Form respectively on relative two inwalls of the square through-hole section 54
The 4th fin 541 with spacing, at least one end of the 4th fin 541 described in two forms the in the square through-hole section 54
Four grooves 542, the spacing described in two between the 4th fin 541 forms the fourth lane 543 connected with the 4th groove 542；It is described
I shape part 55 have the 3rd transverse part 551 for being snapped in the top of the 3rd fin 511, be snapped in the lower section of the 4th fin 541 the
Four transverse parts 552 and the 3rd transverse part 551 of connection and the 4th transverse part 552 and it is placed in third channel 513, fourth lane 543
The second interior vertical connecting portion 553；In assembling, the anti-fall impingement baffle 4 is set up on the connector 53 of cover seat of manhole 2, described
Third party's shape through-hole section 51 and square through-hole section 54 are correspondingly arranged, the I shape part 55 vertically through the 3rd groove 512,
4th groove 542, when the 3rd transverse part 551 is located at the top of the 3rd fin 511, the 4th transverse part 552 perpendicular on vertical
The lower section of the 4th fin 541 is located at upwards, I shape part 55 is laterally urged, and the second vertical connecting portion 553 is placed in threeway
Road 513, fourth lane 543, the 3rd transverse part 551 is snapped in the top of the 3rd fin 511, the 4th transverse part 552 and is snapped in
The lower section of 4th fin 541；The I shape part 55 is capable of achieving cover seat of manhole 2 and anti-fall impingement baffle 4 fixes assembling；In dismounting, can
I shape part 55 is elapsed and is not snapped in the top of the 3rd fin 511, the 4th transverse part 552 to the 3rd transverse part 551 and is not snapped in
The lower section of 4th fin 541, and the second vertical connecting portion 553 abjection third channel 513, fourth lane 543, then from third party
Shape through-hole section 51 takes out I shape part 55, you can realize that cover seat of manhole 2 and anti-fall impingement baffle 4 are disassembled；This attachment structure is more
Firmly, it is simpler, and ease of assembly dismounting.
The through hole of multiple connectors 53 of planting is provided with the inwall vertical direction of the cover seat of manhole of the present utility model 2
52, connector 53 is can adjust in the position of the inwall of cover seat of manhole 2, and then the position of anti-fall impingement baffle 4 is adjusted, the suitability is more preferable.
The outer peripheral edge parcel one of the well lid 1 of the present utility model encloses rubber washer 15 so that well lid 1 and cover seat of manhole 2 it
Between have buffering effect, it is to avoid stress between well lid 1 and cover seat of manhole 2 and produce " very stiff and demanding " situation, can not only protect the He of well lid 1
Cover seat of manhole 2, prevented also from noise.
Above-described embodiment and accompanying drawing and non-limiting product form of the present utility model and style, any art
Appropriate change or modification that those of ordinary skill is done to it, all should be regarded as without departing from patent category of the present utility model.
Claims (10)
1. the high well lid of a kind of structural strength, it is characterised in that：Include well lid, cover seat of manhole；The well lid outer rim be convexly equipped with to
Few two auricle portions, form the deep gouge that card sets auricle portion on the cover seat of manhole, between the auricle portion and deep gouge work is provided with
The dynamic attachment structure for being fixedly connected well lid and cover seat of manhole；The cover seat of manhole is located at deep gouge lower section to be had and propping up that well head coordinates
Support seat, the support base has the first support ring, the second support ring, and first support ring is inserted in well and borehole wall tight fit,
Pull on Jing Qiang on the second support ring top.
2. the high well lid of structural strength as claimed in claim 1, it is characterised in that：Shape between first support ring and the second support ring
Into the sealing space that can fill reinforcement structure material.
3. the high well lid of structural strength as claimed in claim 1, it is characterised in that：The well lid is circle, and the auricle portion is
First auricle portion of the circular arc of three well lid outer rim trisection posistions for being molded over circle, the cover seat of manhole is circle, described
Deep gouge is three the first auricle grooves for being molded over cover seat of manhole and the first auricle portion of correspondence circular arc respectively.
4. the high well lid of structural strength as claimed in claim 1, it is characterised in that：The well lid is square, and the auricle portion is
Second auricle portion of two circular arc for being molded over well lid outer rim opposite end respectively, the cover seat of manhole is square, the deep gouge
For the second auricle groove in two the second auricle portions for being molded over cover seat of manhole opposite end and correspondence circular arc respectively.
5. the high well lid of structural strength as claimed in claim 1, it is characterised in that：The attachment structure is included and takes shape in well lid
On the first square through-hole section, take shape in the second square through-hole section on cover seat of manhole and activity locking first party shape through-hole section and the
The drum connector in two square through hole portions；Form respectively with spacing on relative two inwalls of the first square through-hole section
First fin, at least one end of the first fin described in two forms the first groove in the first square through-hole section, first described in two
Spacing between fin forms the first passage connected with the first groove；First wing described in the second square through-hole section correspondence two
Sheetmolding has two second fins, and at least one end of the second fin described in two forms the second groove in the second square through-hole section,
And the spacing described in two between second fin forms the second channel connected with the second groove；The drum connector has buckle
The first transverse part above the first fin, the second transverse part being snapped in below the second fin and the first transverse part of connection and the
Two transverse parts and the first vertical connecting portion being placed in first passage, second channel.
6. the high well lid of structural strength as claimed in claim 5, it is characterised in that：The first square through-hole section have protrude from
Well lid bottom surface and the extension that can be inserted in the second square through-hole section, first fin takes shape in the bottom of extension described in two.
7. the high well lid of structural strength as claimed in claim 5, it is characterised in that：It is plugged with first groove, the second groove
Block rubber, the block rubber have stretch put the first groove, the vertical portion of the second groove, stretch put transverse part above the first fin and
The wide diameter portion being snapped in above the first square through-hole section.
8. the high well lid of structural strength as claimed in claim 1, it is characterised in that：The internal ring of the cover seat of manhole is provided with anti-fall anti-
Punching, is provided with multiple lock solid structures between the anti-fall impingement baffle and cover seat of manhole, the lock solid structure include take shape in it is anti-
Pendant impingement baffle on third party's shape through-hole section, take shape in cover seat of manhole inwall through hole, be inserted in through hole connector, take shape in
The I shape part of square through-hole section and activity locking third party's shape through-hole section and square through-hole section on connector；Institute
State and form the 3rd fin with spacing respectively on relative two inwalls of third party's shape through-hole section, the 3rd fin described in two is extremely
Few one end forms the 3rd groove in third party's shape through-hole section, and the spacing described in two between the 3rd fin is formed and the 3rd groove
The third channel of connection；The 4th fin with spacing is formed respectively on relative two inwalls of the square through-hole section,
At least one end of the 4th fin forms the 4th groove in square through-hole section described in two, described in two between the 4th fin
Spacing forms the fourth lane connected with the 4th groove；The I shape part has the 3rd be snapped in above the 3rd fin horizontal
Portion, the 4th transverse part being snapped in below the 4th fin and the 3rd transverse part of connection and the 4th transverse part and it is placed in threeway
The second vertical connecting portion in road, fourth lane.
9. the high well lid of structural strength as claimed in claim 8, it is characterised in that：Arrange on the cover seat of manhole inwall vertical direction
There is the through hole of multiple connectors of planting.
10. the high well lid of structural strength as claimed in claim 1, it is characterised in that：The outer peripheral edge parcel one of the well lid encloses rubber
Rubber gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621183440.6U CN206128137U (en) | 2016-10-28 | 2016-10-28 | Well lid that structural strength is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621183440.6U CN206128137U (en) | 2016-10-28 | 2016-10-28 | Well lid that structural strength is high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206128137U true CN206128137U (en) | 2017-04-26 |
Family
ID=58576916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621183440.6U Active CN206128137U (en) | 2016-10-28 | 2016-10-28 | Well lid that structural strength is high |
Country Status (1)
| Country | Link |
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| CN (1) | CN206128137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436769A (en) * | 2016-10-28 | 2017-02-22 | 泉州博超实业有限公司 | Manhole cover with high structural strength |
-
2016
- 2016-10-28 CN CN201621183440.6U patent/CN206128137U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436769A (en) * | 2016-10-28 | 2017-02-22 | 泉州博超实业有限公司 | Manhole cover with high structural strength |
| CN106436769B (en) * | 2016-10-28 | 2019-10-25 | 泉州博超实业有限公司 | The high well lid of structural strength |
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